hey i need some help...i bought a auto meter air fuel ratio guage...not a wideband just a regular one.. for my tc. i hooked everything up correctly but i cannot seem to find the sending wire from the 02 sensor..we have a 4 wire 02..and usually the white is the sending wire...but it didnt work..it had good connection but the guage didnt occilate back and forth like it should...it would just kinda "tweak-out" a little....has anyone hooked one up yet ..i just joined the site..sorry if this has already been coverd...please help

 

Why are you hooking up a A/F guage to a narrow band O2 sensor? That gauge will never read correctly and all you will see is pretty flashing LED's. Get a wideband setup like the LM-1 if you really want to know what your A/F is. All you are doing with that setup is wasting your money. I'm assuming you just want it for show.

 

You hook it up to the A/F Ratio sensor not the 02 sensor. It will tell you nothing because our cars use a narrow band. The sensor on the header is the A/F Ratio sensor and it only has 2 wires you are supposed to use the blue one. The gauge will tell you nothing unless you are at full throttle and then it will only read rich because it is a narrow band. All that gauge is for is a ricer light show.

 

Hooking up a LED lit A/F gauge IS pretty worthless, however, it does depend on how your using it...if your using N2O, then the only time you need a reading is at full throttle...which if its not green and the bottle's open its time to do a little more tuning....so before you flame him, realize even limited usuability is still usuability...and anyone running a wide-band O2 ALL the time is an idiot, because they are great for tuning but the more heat cycling you subject them to the more inaccurate they become. I'd be ____ed off if I spent 5-700 bucks on a wideband and burned it out by driving around before I could get to a dyno.

 

Well i have a feeling if we really have a 4 wire o2 sensor, that we may actually have something simular to what the 02+ civic si has. acording to this site (http://www.brockwayengineering.com/products.html, at the bottom), that the civic si has a 4 wire o2 sensor and is fairly acurate

and i am not sure if we are a LEV-II (I do know that the 2005 camry 4-cylinder is) but it is very possible we have the same o2 sensor. This would also explain why his autometer guage would not work because it is a different type of o2 sensor. I hoped this helped.